CN1148021C - Communication system and operating method thereof - Google Patents

Communication system and operating method thereof

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Publication number
CN1148021C
CN1148021C CNB971901589A CN97190158A CN1148021C CN 1148021 C CN1148021 C CN 1148021C CN B971901589 A CNB971901589 A CN B971901589A CN 97190158 A CN97190158 A CN 97190158A CN 1148021 C CN1148021 C CN 1148021C
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China
Prior art keywords
communication
communication system
bandwidth
channel
information
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CNB971901589A
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Chinese (zh)
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CN1181852A (en
Inventor
威廉・内尔・罗宾逊
威廉·内尔·罗宾逊
克里奇顿
鲍尔·克里奇顿
・彼德・本
霍华德·彼德·本
钱伯斯
大卫·钱伯斯
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摩托罗拉有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • H04W28/20Negotiating bandwidth
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2659Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for data rate control

Abstract

如图中所示的通讯系统(28),包括一个主设备(44)和一个从设备(30)。 As shown in the communication system (28), comprising a master device (44) and a slave device (30). 作为在系统(28)内部协调的结果,并考虑到系统能力及正在进行的通讯间存在的相对分级之后,按照通讯的基本实时数据速率所要求的比例来校正主设备(44)与从设备(30)间正在进行的通讯所使用的带宽。 After the coordinate system as an internal (28) results, taking into account the relative ranking between system capacity and ongoing communications exist, real-time data substantially in proportion to the communication speed required to correct the master device (44) and slave devices ( 30) bandwidth between ongoing communication used. 因此,通过优化动态可变的可利用带宽,该系统允许传输的信息量在固定时间内波动,同时根据相对分级将通讯资源重点分配。 Accordingly, by optimizing available bandwidth dynamically variable, the system allows the amount of information transmitted fluctuates within a fixed time, while according to the relative allocation of communication resources to focus classification.

Description

通讯系统及其操作方法 Communication system and method of operation

技术领域 FIELD

:本发明一般地涉及通讯系统,而且特别适用于通过这样的一个通讯系统的通讯资源进行信息的接收和传输的频带宽度分配。 : The present invention relates generally to communications systems, and is especially applicable to the bandwidth allocation information transmitted and received by the communication resource of such a communication system.

背景技术 Background technique

:频谱的竞争和有限的利用率,对于一般地使通讯系统的频谱效率最大化的制造商,业务提供者和操作者来说,而且特别是对于无线电信系统来说,产生了压力。 : Competition and limited spectrum utilization for the general communications system to maximize spectral efficiency of manufacturers, service providers and the operator, and particularly for wireless telecommunications systems, resulting in pressure. 可变速率话音编码器(话音编码器),如在IS-95码分多址系统中实现的那样,在这方面提供了一个增加频谱利用效率的方法。 The variable rate speech encoder (speech encoder), as implemented in IS-95 CDMA system that provides a method of increasing the efficiency of spectrum utilization in this regard. 而且特别对于无线系统来说,适应不断变化的系统负荷而不用违背简单的频率规划方案,对于这些系统来说是理想的。 And especially for wireless systems, to adapt to changing system load rather than a simple breach of the frequency plan is ideal for these systems. 实际上,调整蜂窝频率的重新使用计划将是有益的,而不是随着固定系统设计灵活性的降低变得麻烦了。 In fact, adjusting the cellular frequency reuse plan would be beneficial, rather than with decreasing fixed system design flexibility becomes a problem. 经制造商为每种配置的情况考虑到最坏的情况下的干扰问题(干扰问题并不可能经常准时地发生在任何给定点上)之后,该系统设计被仔细地均衡。 By the manufacturer is taking into account the circumstances of each configuration interference in the worst case (interference problem is not likely to occur at regular time any given point) after the system is designed to be carefully balanced.

随着朝提供更多业务如数据和多媒体方面的发展,对于无线电信网络用户来说,使用可变信息传输率(即实时可变的位速率)日趋流行。 With more towards providing services such as data and multimedia development, for the wireless telecommunications network users, the use of variable information transmission rate (ie real-time variable bit rate) become increasingly popular.

例如在如欧洲数字化无绳电话(DECT)标准和全球移动系统(GSM)蜂窝通讯等的时分多路复用系统中,通过使用整体复用(连续的)时隙来支持选定的位速率,可在时域中实现不同的位数率。 For example, such as the European digital cordless telephone (DECT) standard and the Global System for Mobile (GSM) cellular communications systems like time division multiplexing, by using the overall multiplexing (contiguous) slots to support the selected bit rate, can be achieve a different digit rate in the time domain. 实际上在DECT(即时分多路复用(TDD)系统)中已经推荐了一般分配给保留频道的时隙可被重新分配给前向频道的方案,从而提供非对称业务。 In fact the DECT (time division multiplexing (TDD) system) have been proposed in general to reservation channel assigned to the program channels may be slots, thereby providing asymmetric traffic is reassigned to the front. 因此恒定功率包络系统中,在一个固定的频率频道上传输多的信息将需要更长的传输时间。 Thus a constant power envelope system on a fixed frequency transmit multiple channels of information transmission will take longer time.

其它TDM系统通过改变到不同水平的调制上(例如,二相移键控(BPSK)、正交相移键控(QPSK)、正交调幅(QAM)的形式如16QAM和64QAM等),提供不同的数据率、不同数量的信息位从而被编码成各种被传输的符号。 Other TDM systems by changing to (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), quadrature amplitude modulation form (QAM) such as 16QAM and 64QAM, etc.) modulated on different levels, to provide different data rate, so that different numbers of information bits are encoded into symbols to be transmitted.

换言之,CDMA系统通过调整传输功率,且在某些情况下通过进入间断的传输模式,来支持不同的数据率。 In other words, CDMA system by adjusting the transmit power, and in some cases by entering discontinuous transmission mode, to support different data rates. 如将要被理解的那样,CDMA系统以恒定功率频谱密度工作,其中每位的能量大致是恒定的,从而使较少位的传输一般具有减少总体传输功率的效应。 As will be appreciated, CDMA systems working at constant power spectral density, which is a substantially constant energy per bit, so that fewer bits transmitted typically has the effect of reducing overall power transmission.

因此,仅通过使用现有技术,每个希望提供高数据率业务的操作者或业务提供者,将要求在每个服务的覆盖区(蜂房)中分配大量的频谱资源。 Thus, the prior art by using only every desirable to provide high data rate services, an operator or a service provider, will require a large amount of spectrum resources allocated in the coverage area of ​​each service (hives) in. 因此,将使操作者或业务提供者使用较少的频谱,而不用降低其提供的高数据率业务能力的技术将占有较大的优越性。 So, it will enable the operator or service provider to use less spectrum, rather than reduce the technological capability of high data rate services it provides will account for a large advantage.

发明内容 SUMMARY

:根据本发明的第一方面,这里提供一种通讯系统,具有一个通讯资源,用以支持在具有信道频带宽度的多个频道上的通讯,所述的多个频道能够支持多种不同的业务,其特征在于,所述的通讯系统包括:用于确定对所述通信资源需求的装置;和用于响应所述的需求、动态地调整所述多个频道之中至少一个频道的频带宽度的装置,所述的动态调整装置被设置成调整所述频带宽度以便重点分配所述通讯资源朝着正在进行的通讯之间存在的一个相对分级的较高层次进行分配。 : According to a first aspect of the present invention, there is provided a communication system having a communication resource for supporting communications on a plurality of channels in a channel having a band width of said plurality of channels to support multiple different services wherein, said communication system comprising: means for determining a demand for said communication resource; and in response to said demand for dynamically adjusting bandwidth among the plurality of channels at least one channel means, said dynamic adjustment means is arranged to adjust the frequency bandwidth allocated to the communication key assigning resources towards ongoing communication between a relatively higher level of hierarchy. 该系统还包括:存储器,用于存储分级信息,该分组信息定义了所述通讯系统的通讯设备的相对分级,其中所述的动态调整频带宽度的装置调整至少一个频道的频带宽度,重点分配所述通讯资源来支持该通讯系统中的第一套通讯设备的操作能力,所述的第一套通讯设备的分组相对地高于该通讯系统中的第二套通讯设备的分级,所述的第二套通讯设备具有相对低的分级。 The system further comprises: a memory for storing the classification information, the packet information defines the relative ranking of the communication device of the communication system, dynamically adjusting means for adjusting the frequency bandwidth wherein said at least one channel bandwidth, the key distribution said communication resources to support the ability to operate the first set of communication devices in the communication system, the packet communication apparatus of the first set of classification is relatively higher than the second set of communication devices in the communication system, said first two sets of communication equipment has a relatively low rating. 该系统将分配给所述第二套通讯设备的频带宽度减少。 The system will assign bandwidth to the second set of communication devices is reduced. 所述的动态调整频带宽度的装置工作,以保持正在转发到所述第二套通讯设备的信息中重要性比不转发这种信息的附属业务要高些的业务。 The apparatus working bandwidth dynamic adjustment to maintain the information is forwarded to the second set of communication equipment higher than the importance of ancillary activities such information does not forward more traffic. 所述的动态调整频带宽度的装置工作,以将分配给所述第二套通讯设备的频带宽度悬置。 The dynamic adjustment device working bandwidth to the bandwidth allocated to the second set of the communication device is suspended. 该系统还包括:用于响应接入优先级以确定所述分级的层次的装置。 The system further comprising: responsive to determining access priority level of the device hierarchy. 该系统还包括:用于响应所述通讯系统所支持的不同业务以便确定所述相对分级的层次的装置。 The system further comprises: means responsive to said communication system supports different service levels in order to determine the relative ranking of the apparatus. 所述的动态调整频带宽度的装置工作,以按照第一频道上通讯要求的基本上实时数据速率的比例来调整至少一个频道的频带宽度。 The dynamic adjustment device working frequency bandwidth, in a ratio substantially in accordance with the real-time communication data rate required on the first channel to adjust the frequency bandwidth of the at least one channel. 所述的动态调整频带宽度的装置还包括:为所述的多个频道之中至少一个频道分配一个中心频道频率的装置。 Means dynamic adjustment of the frequency bandwidth further comprises: means a center channel among a plurality of frequency channels allocated to said at least one channel. 所述的分配中心频道频率的装置被安排成可使所述的多个频道占有所述通讯资源的频带宽度的一个连续部分。 Means for assigning central channel frequencies is arranged to the band width of a continuous portion of the plurality of channels can occupy the communication resources. 该系统还包括:存储器,用于存储与所述通讯系统的通讯设备的操作参数有关的操作参数信息,而且其中所述的动态调整频带宽度的装置调整至少一个频道的频带宽度,以在与所述操作参数信息有关的一个固定时间内优化至少一个频道上所提供的信息量。 The system further comprising: a memory for storing the operating parameters of the communication system of the communication device information regarding operating parameters, and dynamically adjusting means for adjusting the bandwidth of the frequency bandwidth wherein said at least one channel, and in the order said operating parameter information within a fixed time to optimize the amount of information relating to at least one channel is provided. 该系统还包括:存储器,用于存储与所述通讯系统的通讯设备的操作参数有关的操作参数信息,而且其中所述的动态调整频带宽度的装置被安排成保证在任何时间内将最小的频带宽度提供给所述通讯资源上有效工作的通讯设备。 The system further comprising: a memory for storing the operating parameters of the communication system of the communication device information regarding operating parameters, and dynamically adjusting apparatus wherein the frequency bandwidth is arranged to ensure at any time the minimum band width is supplied to the communication apparatus on the communication resources to work effectively.

本发明的第二个方面,这里提供一种用以将一个通讯系统的一种通讯资源分配给多个频道的方法,其特征在于,该方法包括以下步骤:确定对所述通讯资源的需求;响应所述的需求,动态地调整所述多个频道之中至少一个频道的频带宽度,从而在一个固定时间动态地改变该至少一个频道上所提供的信息量;和调整所述的频带宽度以便在正进行的通讯之间所存在的一个相对分级上重点分配所述的通讯资源。 A second aspect of the present invention, there is provided a method for a plurality of channels A communication resources allocated to a communication system, characterized in that the method comprises the steps of: determining the need for communication resources; the demand response is dynamically adjusting the bandwidth of the at least one channel among the plurality of channels, thereby dynamically changing the amount of information provided to the at least one channel in a fixed time; and bandwidth adjustment according to ongoing communication between a present relative ranking of the communication resource allocation according to the focus. 该方法还包括以下步骤:存储定义所述通讯系统的通讯设备中的一个相对分级的分级信息;和重点分配所述的通讯资源以支持第一套通讯系统操作能力,所述的第一套通讯设备的分级相对地高于所述通讯系统中的第二套通讯设备的分级,所述的第二套通讯设备具有相对低的分级。 The method further comprises the steps of: classifying information of a relative ranking of the communication apparatus stores data defining the communication system; and said communication resource allocation to support the key set of the first communication system operating capability, the first set of communication classifying device classifying relatively higher than the second set of communication devices in a communication system, said second set of communication devices having a relatively low grade.

附图说明 BRIEF DESCRIPTION

:参考相应附图,现在描述本发明的示范性实施例。 : With reference to the accompanying drawings, the present invention is now described embodiment exemplary.

图1为时域系统中现有技术的时隙分配描述;图2图解了根据本发明的最佳实施例进行的动态频率分配;图3根据本发明的一个系统框图;图4说明了本发明的最佳实施例的通讯单元的典型通讯协议:而且图5显示了通讯单元的典型操作流程图(根据本发明的最佳实施例)。 A time-domain system of FIG prior art describes slot allocation; FIG. 2 illustrates dynamic frequency allocation in accordance with the preferred embodiment of the present invention; FIG. 3 is a system block diagram according to the present invention; Figure 4 illustrates the present invention a typical communication protocol of the communication unit of the preferred embodiment: and Figure 5 shows an exemplary flowchart of the operation of the communication unit (in accordance with a preferred embodiment of the present invention).

具体实施方式 Detailed ways

:参考图1,它图示了时隙系统(例如具有50%有效周期的TDD系统)中的现有技术时隙分配。 : Referring to FIG 1, which illustrates a slot system (e.g., TDD system having a 50% effective period) in the prior art time slot allocation. 更具体地讲,许多的邻接时隙10-24通常按严格的交替序列分配来用于传输功能和接收功能,如对应的时隙10-16所显示的那样。 More specifically, a number of adjacent time slots 10-24 are usually allocated in strict alternating sequence for transmission and receive functions, the corresponding time slot as shown in 10-16. 然而,用于前向和后向频道的时隙分配可能要求多个时隙被周期性地分配给一个方向的通讯。 However, the former may require a plurality of time slots and backward time slots assigned to the channel is periodically allocated to the communication in one direction. 在稍后的这个方面,(三个)邻接的时隙18-22的全部能力被指定用于接收功能,以支持附加的(增加的)专门方向的通讯业务。 In this later regard, (three) time slots adjacent to the full capacity of 18-22 designated for reception function to support additional (increased) communication traffic specialized direction.

不是通过调整终端(例如一个通讯单元)在时域中传输的时间量,和/或终端在给定时间内传输的能量大小,和/或传输过程中由可变速率编码器采用的调制水平(即每个符号的位数),本发明的通讯设备(例如数据终端或基站)另外地或者换个方法地,大体上按照被支持业务(多种业务)所要求的实时数据速率的大小而调整传输所使用的频带宽度。 By not adjusting terminal (e.g. a communication unit) the amount of transmission time in the time domain, and / or at a terminal of energy transfer within a given time, and / or transmission process employed by the variable rate encoder modulation level ( i.e., bits per symbol), communications equipment (e.g., a data terminal or a base station) of the present invention additionally or another method, the support is substantially in accordance with the size of the service (s services) required for real-time transmission data rate adjust bandwidth used. 因此,本发明并不限制每秒发送的固定位数,也不限制用以传输的调制速率,但是它被安排成在可允许最小的频带宽度和最大频带宽度间,有效且动态变化地优化频带宽度,以允许固定时间内传输信息量的波动。 Accordingly, the present invention is not restricted by the fixed number of bits transmitted per second, the modulation rate for the transmission is not restricted, but it is arranged to the minimum allowable bandwidth and a maximum bandwidth and the available band optimizing and dynamically changes width, in order to allow the fluctuation of the amount of information transmitted within a fixed time. 在这方面,按递增的步长(具有1比特可能分辨率)实时地调整频带宽度。 In this regard, according to the incremental steps (having a 1-bit resolution may be) to adjust the bandwidth in real time.

图2图解了本发明的概念,其中可利用的通讯资源(比特管(BITPIPE))25被初始化地分配到中心频率为F4到F7的不同频带宽度的多个频道,由相应数量的远程终端(没有画出)使用,即本例中的四个远程终端。 FIG 2 illustrates the concept of the present invention, wherein the communication resources available (bit pipe (BITPIPE)) 25 is initialized to the center frequency allocated to a plurality of channels of different bandwidths F4 to F7, the corresponding number of remote terminals by the ( not shown) used, i.e., four remote terminals in this example. 应注意到,所有的四个终端开始时都工作在它们的最大频带宽度,因为可利用的通讯资源25没有被使用到最大可能的极限,仅利用了XHz26的频带宽度。 It should be noted that all four terminals at the start of work in their maximum bandwidth, because available communication resources 25 are not used to the maximum possible limit, using only the bandwidth of XHz26. 实际上,分配给四个远程终端的频道占有比特管25频带宽度的连续区间。 Indeed, the remote terminal assigned to channel occupies four bits tube section 25 continuous band width. 接下来,系统被重新配置后,只有三个远程终端被中心频率为F8到F10的频道(如图中点轮廓线所示)服务。 Subsequently, the system is reconfigured, the remote terminal is only three channel center frequency F8 through F10 (outline shown by the dotted line) services. 然而在这种情况下,系统所使用的频带宽度已有了一个递增量27,而且该递增表示利用了全部可用比特管25。 However, in this case, the system bandwidth used by the existing one increment 27, and represents the incremental use of the total available bit pipe 25. 还应注意到,中心频率F4到F9巧合性地冲突了,虽然中心频率F9不再是该系统第一频道的中心频率。 It should also be noted that the center frequency F4 to F9 coincidence of the conflict, though the center frequency F9 no longer the center frequency of the first channel of the system. 而且,如能看到的那样,这样的频带宽度分配从而使可利用比特管25的显著增加量被分配给中心频率为F10的频道。 Moreover, as can be seen, the width of such bands may be utilized so that the channel allocation significantly increase the amount of bits allocated to the pipe 25 is the center frequency F10.

图3显示了本发现系统28的具体化方框图。 3 shows a block diagram of the specific system 28 of the present discovery. 设备30包括联接到天线34的宽带接收机电路32,该天线34接收从系统控制单元44发射出去的信息信号36。 Device 30 comprises a circuit coupled to a wideband receiver 32, antenna 34, the antenna 34 receives transmitted from the system control unit 44 of the information signal 36. 宽带接收机32联接到一个控制处理器37,该控制处理器37一般地被安排成控制和协调接收机的运行。 The wideband receiver 32 is coupled to a control processor 37, the control processor 37 generally arranged to control and coordinate the operation of the receiver. 控制处理器37又联接到程序存储器38(用于存储接收机的控制程序)和数字信号处理器(DSP)40,DSP也联接到宽带接收机32和程序存储器38。 Control processor 37 in turn is coupled to the program memory 38 (for storing a control program of the receiver) and digital signal processor (DSP) 40, DSP 32 is also coupled to a wideband receiver and a program memory 38. 系统控制单元44在天线46处发射(和接收)信息信号36。 The system control unit 44 transmit (and receive) information signals 36 at antenna 46. 天线46联接到通讯电路48,通讯电路反过来又对处理器50的运行控制的维持进行响应。 The antenna 46 is coupled to the communication circuit 48, the communication circuit in turn to the maintenance operation of the processor 50 responds to control. 处理器50联接到存储器52,存储器52既存储如由系统控制单元44服务的设备30的控制算法(包括接收和发射机的控制程序),又存储着与以前和现在的运行参数(频带宽度/调制速率)有关的信息。 The processor 50 is coupled to a memory 52, the memory 52 stores both the control algorithm as device 30 by the system control unit 44 of the service (including a control program of the transmitter and receiver), and stores the previous and current operating parameters (bandwidths / modulation rate) related information. 存储器52可位于相对于系统控制单元44的内部和外部。 The memory 52 may be positioned with respect to the internal and external system control unit 44.

控制程序原理上适用于动态调整设备(不论是主设备或从设备)的调制速率,因为频道动态变化的优化依赖于设备的选定调制速率。 For dynamic adjustment device (either master or slave) of a control program on the principle of the modulation rate, because the dynamic optimization of the channel depends on the modulation rate of the selected device. 因而,必须周期性地从存储器取出和加载用于设备编码和解码的算法。 Thus, loading must be periodically removed and apparatus for encoding and decoding algorithms from the memory.

虽然与接收机一起描述图3的设备30,人们应随时意识到设备30可能是一台发射机或接收机,宽带接收机电路和接收机控制程序(接下来描述)应适时地替换和调整只需要对设备实施调整以适应如此这样的其它应用。 Although described in conjunction with the receiver device 30 of FIG. 3, it should be readily appreciated that the device 30 may be a transmitter or a receiver, broadband receiver circuitry and the receiver control program (described next) should only timely replacement and adjustment We need to adjust to such a device according to such other applications.

本发明的具体实施例中,对远程终端有效频带宽度的动态分配可能基于远程终端中存在的分级(例如与频带宽度需求联系在一起的存取优先权;或根据业务的分级,该分级中保留优先于其它不同业务的某些业务。),其中分级信息存储在系统控制单元44的存储器52中。 Specific embodiments of the present invention, the effective dynamic allocation of bandwidth based on a hierarchical remote terminal may be present in the remote terminal (e.g., bandwidth requirements associated with access priority together; Rated or services, the reserved classification some other services in preference to different services.), wherein the hierarchical information stored in the memory 52, the system control unit 44. 更具体地讲,优先权相对高的远程终端(例如紧急线路,外交视频道)可能一直被分配给最大的频带宽度,而优先权相对低的其它远程终端根据系统仲裁(由处理器50执行)被动态地分配给频带宽度可变的频道。 More specifically, a relatively high priority of remote terminals (e.g. emergency line, diplomatic video channel) might have been allocated the maximum bandwidth, and a relatively low priority to other remote terminals in accordance with the system arbitration (performed by the processor 50) band is dynamically assigned to a variable width channel. 在某些情况下,优先权相对低的其它远程终端可能仅由系统控制单元分配给最小量的分配频道(如果任何的话);或可能在通讯过程中削减(或暂停)其频带宽度,从而使系统实现优先权相对高的远程终端的服务。 In some cases, a relatively low priority to other remote terminal units may be assigned to the channels allocated the minimum amount (if any words) only controlled by the system; or may be cut (or suspension) in which the bandwidth of the communication process, such that system to achieve a relatively high priority service remote terminal. 因此,为了支持试图接入比特管25的所有远程终端,每个远程终端根据分级可被分配给与其最大频带宽度能力成固定或变化比例的频带宽度。 Therefore, attempting to access a bit in order to support all remote terminals pipe 25, each remote terminal may be graded according to their assigned maximum bandwidth capacity to the bandwidth of fixed or variable ratio. 至于削减提供给一个单元的频带宽度,对该单元(例如信息中继必须的业务)相对重要的业务优先于附属业务被保留,附属业务是对信息中继的补充,例如支持语音通讯所要求的频带宽度大大地低于支持会议电视所要求的频带宽度,然而必要的信息主要地包含在话音通讯中。 As provided to reduce bandwidth of a cell, sub supplementary service is relayed to the cell (e.g. information of the relay service must be) relatively important service priority traffic is retained in the subsidiary information, such as supporting voice communications required bandwidth significantly less than the bandwidth required to support the videoconference, however, the necessary information is mainly contained in the voice communication. 因而,从单元上来讲,视频链路将先于话音链路的潜在放弃而被放弃。 Thus, from the unit concerned, before the video link will potentially give up the voice link is abandoned.

根据本发明,可以预先设置系统的最小或最大的可分配频带宽度,或由发射和接收设备之间的协调来决定。 According to the present invention, it may be pre-set minimum or maximum allocatable bandwidth of the system, or determined by the coordination between transmitting and receiving devices. 更进一步地讲,根据由无线介质通讯的主设备和从设备的情况(此处主设备可能是一个基站,从设备可能是一个移动终端),可利用下面的示范机制实现最小和最大可用频带宽度间的协调。 Further speaking, according to the master device and the wireless communication medium from the device case (where the master device may be a base station, a mobile terminal device may be from a), the following exemplary mechanisms may be utilized to achieve the minimum and the maximum available bandwidth coordination between.

步骤1:从设备由控制报文通知主设备其最佳的最小/最大频带宽度限额的变化范围;步骤2:主设备首先比较从设备的最佳变化范围和从设备的能力(存储在数据库中,即主单元可存取的存储器52);然后接下来,为了此种情况下及时地获得可分配频带宽度,估算系统可用的实时频率;而且步骤3:通过控制报文,主设备通知从设备的可分配频带宽度限量,并将系统配置中的任何变化存于存储器52中。 Step 1: The slave device notifies the master control packet optimum minimum / maximum range limit frequency bandwidth; Step 2: the master device first compares the optimum range of the device from the database and from the capacity of the device (storage , i.e. the master unit can access memory 52); and next, in order to obtain in this case can be allocated bandwidth in a timely manner, the estimated frequencies available to the system in real time; and step 3: the control packet, the master notifies the slave It may be allocated a limited bandwidth, and any change in the system configuration stored in memory 52.

如将要知道的那样,步骤1和步骤2为可选项。 As will be known, steps 1 and 2 are optional. 典型情况下,将通过广播报文或设备的特别传输,或相似的操作实现步骤3。 Typically, a particular broadcast packet transmitted through or device, or similar operations implement step 3. 而且,人们应注意到,某些系统(例如,CDMA基本系统)的最小频带宽度限量不为零,因为需要根据规则传输最小数量的比特,以保持系统内的功率控制,从而使远程单元没有必要利用随机接入机制重建与基站的通讯,如将要理解的那样。 Further, it should be noted that, in some systems (e.g., CDMA basic system) the minimum bandwidth limit is not zero, since the minimum number of rules required transmission bit to maintain power control within the system, such that the remote unit is not necessary mechanism reconstructed using a random access communication with the base station, as will be appreciated.

根据本发明的最佳实施例,来自主设备和从设备传输的实时频带宽度是可以在允许的最小和最大限量内逐步地调整的(整个呼叫过程中);虽然这最终要服从主设备知道的可用频带宽度25。 According to a preferred embodiment of the present invention, gradually adjusting the minimum and maximum limits in real time from the master and slave devices are transmission bandwidth may allow the (entire call process); although this is ultimately subject to the master device knows 25 available frequency bandwidth. 在这方面,发射设备(主设备或从设备之一)通过在每个数据传输之前的某个时间发射唯一的控制(或同步)序列,来通知接收设备将用于下面传输周期的精确频带宽度。 In this respect, the transmitting device (master device or slave devices) only the exact width of the emission band of the control (or synchronization) sequence by a certain time before each data transmission, to notify the receiving device will be used in the next transmission period .

图4解释了本发明的最佳实施例的通讯单元的典型通讯协议70。 Figure 4 illustrates a preferred embodiment of the communication unit of the present invention, a typical communication protocol 70. 通讯协议70包括散布在数据通讯序列76-78之间的控制序列72-74。 70 includes a protocol control sequences 72-74 interspersed between data communication sequences 76-78. 每个控制序列72-74可能包括指示用于发射或接收信息的中心频率的频率信息80,以及指示为数据的一个子序列接收或传输所选择的动态可变频带宽度(或调制速率)的频带宽度(调制速率)信息82。 Dynamically variable bandwidth (or modulation rate) is a subsequence Each control sequence 72-74 may contain frequency information for indicating center frequency information for transmission or reception of 80, indicating the data transmission or reception band selected width (modulation rate) information 82. 如将要理解的那样,通讯协议70没必要是连续的,而且可能因而被分配成离散数据块。 As will be appreciated, the communication protocol 70 need not be continuous, and may thus be assigned to the discrete data blocks. 因此,可以在数据序列76-78之前,立即发射控制序列72-74,或及时地同数据序列76-78分开发射控制序列72-74(例如在数据发射的尾部准备好发射数据序列)。 Accordingly, before the data sequence 76-78, 72-74 immediately emission control sequence, or separated in time sequence with the data transmitting control sequence 72-74 76-78 (e.g. data transmitted at the tail of the data sequence is ready to fire).

最佳实施例中,为了从调整发射频带宽度中获得最大的优点,主设备决定每个频道中心频率的精确定位,并通知相应的从设备。 In the preferred embodiment, in order to obtain maximum advantage from adjusting the transmission frequency bandwidth, the master device determines the exact location of each center frequency of the channel, and notifies the corresponding slave device. 因而,在从设备到主设备的上行链路数据传输的情况下,控制序列72不包含频率信息80。 Thus, in cases where the slave to the master uplink data transmission, the control sequence does not contain frequency information 72 80. 事实上,控制序列72-74(同步序列和地址域(或相应的信息),除了用于通讯系统控制要求外,为了清楚起见没有在图4中专门地画出)在频道中心频率和/或可用频带宽度没有变化的情况下,可能被忽略掉。 Indeed, control sequences 72-74 (synchronization sequences and address fields (or corresponding information), in addition to a communication system control requirements, for clarity, not specifically shown in FIG. 4) in the center of the channel frequency and / or a case where there is no change in the available frequency bandwidth, may be ignored.

很明显,在通讯(呼叫)过程中的任何时间,通过根据指定从设备的最大信息传输率的处理能力来设置最小/最大限量,主设备能使从设备传输的信息量最大化。 Obviously, at any time during the communication (call) in the process, specified by setting the transmission rate of information processing capacity of the largest device a minimum / maximum limit, the master device can maximize the amount of information transmitted from the device.

在主设备传输数据的情况下,考虑当前操作频带宽度和系统服务设备的优先权(即系统28目前使用的比特管25)之后,根据系统28当前的可用频带宽度来决定频道的中心频率。 In the case where the master device after transmitting data, regardless of current priority service device and a system bandwidth (i.e. the system currently in use 28 bits tube 25), 28 according to the present system to determine the available frequency bandwidth of the center frequency of the channel. 然后主设备使用控制报文72-74通知从设备的中心频率和将要使用的频带宽度。 Then the master control packets using 72-74 notification center frequency and bandwidth of the device to be used from. 更进一步地讲,由系统控制单元(即主单元)44规定的频带宽度可能决定远程单元(即从设备30)的缺省状态使用的调制速率,因为从设备被优先安排为可使用频带宽度选择一个最佳调制速率。 Further speaking, a predetermined bandwidth by the system control unit (i.e., master unit) remote unit 44 may decide the modulation rate (i.e., from device 30) using the default state, because the bandwidth is preferentially selected from the device arranged to be used an optimum modulation rate. 换言之,从设备可能选择降低调制速率,并通知相应的主设备。 In other words, the device may choose to lower modulation rate and inform the corresponding master device.

在从设备希望发射或改变其频带宽度(调制速率)的情况下,从设备通常从主设备那里收到控制序列。 In cases where the slave wishes to transmit, or changing its bandwidth (modulation rate), the slave device usually receives a control sequence from the master device there. 主设备定义将被使用的中心频率和频带宽度(调制速率)。 Center frequency and bandwidth (modulation rate) defines the master device to be used. 例如,主设备可能通知从设备的可分配操作参数,作为对从设备试图与主设备在随机接入频道(RCH)上建立通讯的响应。 For example, the master device may be assigned a notification from the operating parameters of the device, as a response from the device attempts to establish communication with the master device on a random access channel (the RCH) of. 如果从设备选择了较低的调制速率,它必须在足够的时间内通知主设备(通过传输控制序列),允许调整主设备按此低调制速率接收编码数据。 If the selected device from the lower modulation rate, it must notify the master device for a sufficient time (Transmission Control sequence), Click to allow adjustment of a low modulation rate of the master device receives the encoded data.

利用本发明,主设备能统计性地将比利用其它固定频带宽度方案可能多的用户,多路传输复用到一个可用的频谱上。 With the present invention, a master device can statistically than using other fixing schemes may be more bandwidth users multiplexed multiplexed onto an available spectrum. 以最优方式,通过平衡每个传输的需要,并将每个传输分配到可用的频谱,可实现该优点(同时考虑到可接受的同波频道干扰电平,也许根据主设备和大多数从设备之间的相对位置重新使用可使用频道的载波)。 In an optimal manner, by balancing the needs of each transmission, and to allocate to each of the available transmission spectrum, this advantage can be achieved (taking into account the interference wave of a channel with an acceptable level, and the master device may be based on the most the relative position between the devices may be used to reuse the carrier channels). 本发明具有这样的优点,即在总的可用频谱上实现动态调整且具有足够的灵活性。 The present invention has the advantage that the dynamic adjustment and has sufficient flexibility in the total available spectrum.

本发明还具有另外的优点,即它不限制固定频率的再利用。 The present invention has the further advantage that it does not restrict the reuse of a fixed frequency. 其中,固定频率再利用在今天的许多蜂窝网络中特别盛行。 Wherein the fixed frequency reuse especially prevalent in many of today's cellular networks. 事实上,本发明具有高度的灵活性,且允许简单地引入新的基站。 Indeed, the present invention has high flexibility, and allows easy introduction of new base stations.

现在考虑从收发信机存在时本发明的最佳实施例(如图5所示),源于从收发信机的传输序列开始于方框1。 Consider now the preferred embodiment of the present invention when the transceiver is present (Figure 5), derived from the transmission sequence transceiver begins at block 1. 从收发信机试图在RCH(或相似的)上与主设备建立通讯链路102,然后等待从主设备接收控制信号104。 From the transceiver 102 attempts to establish a communication link with the master device (or similar) on the RCH, and then waits to receive a control signal 104 from the master device. 作为对控制信号的响应,从收发信机的控制处理器37提取频带宽度和中心频率的信息,并指示DSP40相应调整从收发信机的操作参数和处理算法106。 In response to a control signal to extract the information bandwidth and center frequency of the transceiver from the control processor 37, and instructs the operating parameters and adjust processing algorithm from the transceivers 106 DSP40. 然后,DSP40进而适当地在一段时间内传输来自宽带接收机的调制信息108,如TDM时隙。 Then, DSP 40 in turn is suitably a period of time from modulation information 108 transmitted wideband receiver, such as a TDM time slot. 接下来,作出确定传输是否继续的决定110。 Next, make a decision to determine whether to continue the transfer of 110. 如果传输停止,过程就结束112。 If the transfer is stopped, the process 112 ends. 如果继续传输,从收发信机一般地等待114,并判定是否接收到来自主设备的新的控制信号。 If transmission continues from the transceiver typically waits 114, and determines whether a new control signal received from the host device. 否定时115,从收发信机可能希望请求另外的频带宽度来支持附属的业务116。 Negative 115, the transceiver may be desirable to request additional bandwidth to support the service 116 attached. 否定时,从收发信机进而在方框108(如先前描述的那样)发射。 It is negative, and thus (as previously described) emitted from the block 108 in the transceiver. 然而,如果从收发信机希望请求另外的频带宽度;从收发信机首先必须发射一个请求118,然后,或者在方框106处重新配置其操作参数和处理算法之前,或者在按照原先定义的调制速率和频率(方框108)之前,等待请求的认可/拒绝120(通过接收控制信号或过一定时间后)。 However, if desired from a transceiver requesting additional bandwidth; from the transceiver must first transmit 118 a request, then, or reconfigured at block 106 prior to its operating parameters and processing algorithms or modulation in accordance with the previous definition before rate and frequency (block 108), waiting for a request acceptance / rejection 120 (by receiving a control signal or after certain time).

在存在接收情况下,信息的接收开始于从收发信机的确定(定址)126,然后在方框104等待接收来自主设备的控制信号。 In the case where there is a reception, the received information begins by determining (addressing) 126, and then waits to receive a control signal from the master device in block 104 from the transceiver. 接着,DSP40被配置106,从宽带接收机32接收的宽带信号中提取正确信息108。 Next, DSP 40 is configured 106, 108 to extract the correct information from a wideband signal received by the wideband receiver 32.

典型地,在一个专门的控制频道上实施增加频带宽度的请求和控制报文的接收。 Typically, the bandwidth increase request embodiments and control packets received on a dedicated control channel.

人们会明白该发明能应用于单工,双工及半双工通讯协议。 People will understand that the invention can be used in simplex, duplex and half-duplex communication protocol.

因此,不同于通讯系统的现有技术操作(例如图1中的TDD系统),本发明动态调整信息传输所使用的频带宽度(及因此而产生的调制速率),信息传输是对要求系统通讯资源(比特管)的响应。 Thus, the prior art operation (e.g., the TDD system of FIG. 1) is different from the communication system, the present invention dynamically adjusting bandwidth (modulation rate and therefore produced) used for information transmission, the information transmission system is a communication resource requirements (bit pipe) response. 现有技术通讯系统保持一个恒定的实时无线频道频带宽度,以用于该系统所支持的所有数据速率。 Prior art communication system to maintain a constant real-time wireless channel bandwidth, for all data rates supported by the system.

当然,人们应该认识到,仅通过例子给出了上面的描述,以及象光纤通讯链路所使用的详细调整可在本发明的范围内实现。 Of course, it should be appreciated that the above description is given only by way of example, detailed adjustments as well as fiber-optic communications links used may be implemented within the scope of the present invention.

Claims (14)

1.一种通讯系统,具有一个通讯资源,用以支持在具有信道频带宽度的多个频道上的通讯,所述的多个频道能够支持多种不同的业务,其特征在于,所述的通讯系统包括:用于确定对所述通信资源需求的装置;和用于响应所述的需求、动态地调整所述多个频道之中至少一个频道的频带宽度的装置,所述的动态调整装置被设置成调整所述频带宽度以便重点分配所述通讯资源朝着正在进行的通讯之间存在的一个相对分级的较高层次进行分配。 1. A communication system having a communication resource for supporting communications on a plurality of the channels having channel frequency bandwidths, the plurality of channels to support multiple different services, wherein the communication the system comprising: a demand for means for determining the communication resources; and for the demand response, dynamic bandwidth means among the plurality of channels at least one channel to adjust said dynamic adjustment means is arranged to adjust the frequency bandwidth allocated to the communication key assigning resources towards ongoing communication between a relatively higher level of hierarchy.
2.根据权利要求1所述的通讯系统,其特征在于,还包括:存储器,用于存储分级信息,该分组信息定义了所述通讯系统的通讯设备的相对分级,其中所述的动态调整频带宽度的装置调整至少一个频道的频带宽度,重点分配所述通讯资源来支持该通讯系统中的第一套通讯设备的操作能力,所述的第一套通讯设备的分组相对地高于该通讯系统中的第二套通讯设备的分级,所述的第二套通讯设备具有相对低的分级。 The communication system according to claim 1, characterized in that, further comprising: a memory for storing the classification information, the group information defining the relative ranking of the communication device of the communication system, wherein said dynamically adjusting the frequency band means for adjusting the width of the at least one channel bandwidth, the allocation of communication resources to focus on supporting the first set of operational capabilities of the communication device in the communication system, the packet communication apparatus according to the first set of relatively higher than the communication system the second set of hierarchical communications device, said second set of communication devices having a relatively low grade.
3.根据权利要求2所述的通讯系统,其特征在于,将分配给所述第二套通讯设备的频带宽度减少。 The communication system according to claim 2, wherein the frequency bandwidth assigned to the second set of communication devices is reduced.
4.根据权利要求3所述的通讯系统,其特征在于,所述的动态调整频带宽度的装置工作,以保持正在转发到所述第二套通讯设备的信息中重要性比不转发这种信息的附属业务要高些的业务。 4. The communication system according to claim 3, wherein said means dynamically adjust the working width of the frequency band to keep the information being forwarded to said second set of communication device does not forward such information importance ratio the subsidiary business to higher business.
5.根据权利要求2所述的通讯系统,其特征在于,所述的动态调整频带宽度的装置工作,以将分配给所述第二套通讯设备的频带宽度悬置。 The communication system according to claim 2, wherein said means dynamically adjust the working width of the frequency band, to the second set of communication devices assigned to the bandwidth of the suspension.
6.根据权利要求2-5中任何一项所述的通讯系统,其特征在于,还包括:用于响应接入优先级以确定所述分级的层次的装置。 The communication system according to any 2-5 claim, characterized in that, further comprising: responsive to determining access priority level of the device hierarchy.
7.根据权利要求1所述的通讯系统,其特征在于,还包括:用于响应所述通讯系统所支持的不同业务以便确定所述相对分级的层次的装置。 The communication system according to claim 1, characterized in that, further comprising: a communication system for responding to the different services supported by the device to determine relative levels of hierarchy.
8.根据权利要求1所述的通讯系统,其特征在于,所述的动态调整频带宽度的装置工作,以按照第一频道上通讯要求的基本上实时数据速率的比例来调整至少一个频道的频带宽度。 8. The communication system according to claim 1, wherein said means dynamically adjust the working width of the frequency band, a ratio substantially in real time in accordance with a first data rate on the communication channel required to adjust the frequency band of the at least one channel width.
9.根据权利要求1所述的通讯系统,其特征在于,所述的动态调整频带宽度的装置还包括:为所述的多个频道之中至少一个频道分配一个中心频道频率的装置。 9. The communication system according to claim 1, characterized in that the means to dynamically adjust the frequency bandwidth further comprises: means a center channel among a plurality of frequency channels allocated to said at least one channel.
10.根据权利要求9所述的通讯系统,其特征在于,所述的分配中心频道频率的装置被安排成可使所述的多个频道占有所述通讯资源的频带宽度的一个连续部分。 10. A communication system according to claim 9, characterized in that the device for dispensing the center frequency of the channel is arranged a continuous portion of the frequency bandwidth into a plurality of channels can occupy the communication resources.
11.根据权利要求1所述的通讯系统,其特征在于,还包括:存储器,用于存储与所述通讯系统的通讯设备的操作参数有关的操作参数信息,而且其中所述的动态调整频带宽度的装置调整至少一个频道的频带宽度,以在与所述操作参数信息有关的一个固定时间内优化至少一个频道上所提供的信息量。 11. The communication system according to claim 1, characterized in that, further comprising: an operation parameter memory, for storing said communication devices communication system operating parameter information, and wherein said dynamically adjusting bandwidth means for adjusting the frequency bandwidth of the at least one channel, in order to optimize the amount of information within a fixed time parameter information relating to the operation of the at least one channel provided in the.
12.根据权利要求1所述的通讯系统,其特征在于,还包括:存储器,用于存储与所述通讯系统的通讯设备的操作参数有关的操作参数信息,而且其中所述的动态调整频带宽度的装置被安排成保证在任何时间内将最小的频带宽度提供给所述通讯资源上有效工作的通讯设备。 12. A communication system according to claim 1, characterized in that, further comprising: an operation parameter memory, for storing said communication devices communication system operating parameter information, and wherein said dynamically adjusting bandwidth the apparatus is arranged to ensure at any time the minimum frequency bandwidth is provided to communication devices active on the communication resource work.
13.一种用以将一个通讯系统的一种通讯资源分配给多个频道的方法,其特征在于,该方法包括以下步骤:确定对所述通讯资源的需求;响应所述的需求,动态地调整所述多个频道之中至少一个频道的频带宽度,从而在一个固定时间动态地改变该至少一个频道上所提供的信息量;和调整所述的频带宽度以便在正进行的通讯之间所存在的一个相对分级上重点分配所述的通讯资源。 13. A method of communication resources allocated to a communication system for a plurality of channels, wherein the method comprises the steps of: determining the need for communication resources; in response to the demand, dynamically adjusting bandwidth among the plurality of channels at least one channel, to dynamically change the amount of information provided to the at least one channel in a fixed time; and bandwidth adjustment according to the ongoing communication between there is a relative ranking of emphasis on communication resource allocation above.
14.根据权利要求13所述的方法,其特征在于,还包括以下步骤:存储定义所述通讯系统的通讯设备中的一个相对分级的分级信息;和重点分配所述的通讯资源以支持第一套通讯系统操作能力,所述的第一套通讯设备的分级相对地高于所述通讯系统中的第二套通讯设备的分级,所述的第二套通讯设备具有相对低的分级。 14. The method according to claim 13, characterized in that, further comprising the step of: storing the communication apparatus of the communication system defines a relative ranking of the rating information; and said communication resource allocation to support the key first communication system operating capability sets, the first set of hierarchical communications device relatively higher than the second set of hierarchical communications device in the communications system, said second set of communication devices having a relatively low grade.
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